Patents by Inventor Willis M. Carpenter

Willis M. Carpenter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Hydraulic leveling device
    Patent number: 4711428
    Abstract: Hydraulic leveling device and system for leveling trailers, mobile homes, platforms and other equipment. The device and system of the invention comprise a hydraulic cylinder, a support leg connected to the hydraulic cylinder, and a wheel for pivoting the support leg upwards into a storage position.
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: December 8, 1987
    Assignee: Hydra-Level, Inc.
    Inventor: Willis M. Carpenter